Thermal and magnetic characteristics of bulk superconductor and performance analysis of magnetic shielding type of superconducting fault current limiter

H. Ueda, A. Ishiyama, H. Kado, M. Ichikawa

Research output: Contribution to journalConference article

12 Citations (Scopus)

Abstract

Superconducting fault current limiter (SCFCL) is expected to be the first application of a high-temperature superconductor (HTS) to electric power systems. We have been developing a magnetic shielding type of SCFCL that uses a cylindrical Bi-2223 HTS bulk. Short-circuit fault tests in a small SCFCL model were performed experimentally. A computer program based on the finite element method (FEM) taking the voltage-current (E-J) characteristics of the bulk material into account was developed to analyze the performance in the short-circuit fault tests and to investigate the dynamic electromagnetic behavior within a bulk superconductor. Because the E-J characteristic of HTS bulk depends on temperature and magnetic field, we investigated experimentally the E-J characteristics of a bulk superconductor in various operating temperatures and magnetic fields. The computer program considering the measured E-J characteristics simulated the electromagnetic behaviors in an SCFCL test model successfully.

Original languageEnglish
Pages (from-to)2402-2405
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume11
Issue number1 II
DOIs
Publication statusPublished - 2001 Mar 1
Event2000 Applied Superconductivity Conference - Virginia Beach, VA, United States
Duration: 2000 Sep 172000 Sep 22

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Keywords

  • E-J characteristics
  • Finite element analysis
  • HTS bulk material
  • Magnetic shielding type of superconducting fault current limiter

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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